The main idea behind Darwin’s theory of natural selection was Group of answer choices a. Competition for space between the individuals will limit a population b. Individuals pass on acquired characteristics to their offspring c. Individuals with advantageous adaptations are more likely to out-produce those lacking that adaptation d. Populations adapt over time

The male bower bird builds an elaborate structure (a bower) of sticks and other objects.  He then displays to females in front of the bower.  The bower building behavior is probably the result of ... ? Group of answer choices a. intrasexual selection b. migration c. natural selection d. intersexual selection e. genetic drift

Natural selection can act on both ________, which is the probability of survival, and ________, which is the number of offspring produced. a: epistasis; epigenetics b: directional selection, frequency dependent selection c: livelihood; income d: viability; fecundity

Which statement best explains why an understanding of life-history trade-offs is important when examining the fitness of an organism? A. Because individuals may not be producing the maximum number of offspring they possibly can in any particular breeding season. B. Because in any particular breeding season, individuals may need to produce fewer offspring to enhance their own survival. C. Because individuals need to live longer, so they will not produce the maximum number of offspring each season. D. Because when individuals need offspring, they can choose whether to reproduce or not.

In white sands national monument in New Mexico there is a population of very pale lizards whose pale color matches the sand.  Other lizard populations of the same species that live on rock are dark in color. What evolutionary is probably responsible for the pale color of the white sands lizards. Group of answer choices A. Mutation B. Sexual Selection C. Natural Selection D. Genetic Drift E. Migration (gene flow)

A. Genetic drift refers to a. change in the way the body functions as a result of stressors. b. changes in the DNA sequence, particularly in sex cells. c. random changes or accidents that reduce genetic variation in a population. B. All human cultures a. can be correlated with "races" in the past. b. are unchanging and eternal. c. can be ranked as "primitive" or "advanced". d. are integrated and complex. d. exchange of genes when outsiders migrate into an area.

A polar bear is leaving the ice caps because they are melting. The polar bear enters a wooded area with limited snow. Describe how natural selection would affect the polar bear's relationship with its ecological surroundings.

Read the statement and state which evolution it is  natural selection that leads to evolution of phenotypic differences  A. Stabilizing selection  b. Frequency dependent  c. Sexual selection  d. Diversifying seledtion e. Directional selection

A set of alleles carried by (characteristics of) an organism that encodes for a specific trait. Select one: O a. Genetic diversity b. Karyotype c. Phenotype d. Genotype e. Natural selection